Devices have built-in DHCP relay agents. However, to configure network segments that do not have a separate DHCP server, controllers can have built-in DHCP pools that assign IP addresses and subnet masks to clients connecting to your device. Typically, a device can have one or more DHCP pools that each provide a range of IP addresses.

DHCP pools are required for internal DHCP to work. Once DHCP is defined on the device , you can then point the primary DHCP server IP address on the management, AP-manager, and dynamic interfaces to the device’s management interface.

Choose the Administration > DHCP Pools to configure the following details:

1. In the Pools section, click Add to add a new DHCP pool. The Create DHCP Pool dialog box is displayed.
2. In the DHCP Pool Name field, enter a name for the new DHCP pool.
3. From the IP Type drop-down list, choose the IP address type as either IPv4 or IPv6.
4. In the Network field, enter the network served by this DHCP scope. This IP address is used by the management interface with Netmask applied, as configured on the Interfaces page.
5. In the Subnet Mask field, enter the subnet mask assigned to all wireless clients.
6. In the Starting ip field, enter the starting IP address.
7. In the Ending ip field, enter the trailing IP address.
8. Choose the Reserved Only as enabled or disabled.
9. From the Lease drop-down list, choose the lease type as either User Defined or Never Expires. If you choose User Defined, you can enter the amount of time that an IP address is granted to a client.
10. To perform advanced configuration for the DHCP Scope, click Advanced and perform the following tasks; else, skip to Step 17.
11. Check the Enable DNS Proxy check box to enable DNS proxy.
12. In the Default Router(s) fields, enter the IP address of the optional router or router(s) that connect to the device and click the + icon to add to the list. Each router must include a DHCP forwarding agent that enables a single device to serve the clients of multiple devices.
13. In the DNS Server(s) field, enter the IP address of the optional DNS server(s) and click the + icon to add to the list. Each DNS server must be able to update a client’s DNS entry to match the IP address assigned by this DHCP scope.
14. In the NetBios Name Server(s) field, enter the IP address of the optional Microsoft NetBIOS name servers, such as a Microsoft Windows Internet Naming Service (WINS) server and click the + icon to add to the list.
15. In the Domain field, enter the optional domain name of this DHCP scope for use with one or more DNS servers.
16. To add DHCP options, click Add, in the DHCP Options List section. DHCP provides an internal framework for passing configuration parameters and other control information as DHCP options, to clients on your network. DHCP options carry parameters as tagged data stored within protocol messages exchanged between the DHCP server and its clients.
17. Enter the DHCP option you want to add.
18. Click Apply to Device.

In the DHCP Persistence section, you can view the following details:

• Interface
• Pool name
• Reserved IP address

Click any of the interface names to view the Edit DHCP Persistence page.